Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
190063moderately pollutedgood141excellent
180052lightly pollutedgood141excellent
170054lightly pollutedgood131excellent
160051lightly pollutedgood131excellent
150047lightly pollutedexcellent121excellent
140047lightly pollutedexcellent111excellent
130033goodexcellent91excellent
120026goodexcellent91excellent
110034goodexcellent81excellent
100034goodexcellent81excellent
090037lightly pollutedexcellent81excellent
080042lightly pollutedexcellent81excellent
070041lightly pollutedexcellent81excellent
060041lightly pollutedexcellent81excellent
050046lightly pollutedexcellent91excellent
040050lightly pollutedexcellent101excellent
030052lightly pollutedexcellent101excellent
020052lightly pollutedexcellent101excellent
010052lightly pollutedexcellent111excellent
000059lightly pollutedexcellent111excellent
230055lightly pollutedexcellent121excellent
220060lightly pollutedexcellent121excellent
210063moderately pollutedexcellent121excellent
200066moderately pollutedgood131excellent